Khan/khan-exercises — Issue #5041: Linear equations 4 - answer checking system
Author: KhanBugz
Created: 2011-10-26 19:14:56+00:00
State: open
Labels: ie8, win7

[linear_equations_4.html?seed=27&problem=x-on-bottom](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/linear_equations_4.html?seed=27&problem=x-on-bottom&debug)

["-4.7","5","-5","5","-33/7"]

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